Acording to my Aunt Rebecca Sanders book, "Richard Whitehurst Grandfather of us All", pub in 1978 [and copies may be available from email@example.com] she lists the decendents of John, the 3rd son of Richard Whitehurst (will 1654) as: John and wife Mary will 1692 their children are:
John Hugh (called henry in his fathers will Elizabeth
John (will 1720)and Elizabeth had Gideon Enoch Mary John Whitehurst Jr born after the death of his father.
This John Jr had a sons Richard. Caraway, John and Thomas Whitehurst